What characteristic is often desirable for a pesticide in certain situations?

Immediate effectiveness with quick dissipation is often desirable for a pesticide in certain situations because it allows for rapid control of pests with minimal long-term impact on the surrounding environment. This characteristic is particularly important in scenarios where pests pose an immediate threat to crops, human health, or property. By acting quickly, these pesticides can help mitigate damage before it becomes significant.

Additionally, quick dissipation means that the pesticide will break down rapidly and reduce the risk of residues impacting subsequent crops, non-target organisms, or the environment. It is crucial to balance effectiveness with safety and environmental considerations, making a pesticide that acts swiftly but does not linger in the ecosystem a favorable choice in many agricultural and pest control practices.